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Check the number theory chapter in attached link.

gmat-math-book-87417.html
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zero is even number but its neither positive nor negative.
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True, Zero is even number but its neither positive nor negative. But I do have a doubt as zero comes under natural numbers, those are non-negative integers. So, I think we can treat this as positive.
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kissthegmat
True, Zero is even number but its neither positive nor negative. But I do have a doubt as zero comes under natural numbers, those are non-negative integers. So, I think we can treat this as positive.

Natural numbers starts from 1 not 0

whole numbers starts from 0

Natural numbers are subset of whole number.

Whole numbers := [0,natural numbers]
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Hussain15
Check the number theory chapter in attached link.

gmat-math-book-87417.html

Thanks for the pointer. The book is really helpful.
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gurpreetsingh
kissthegmat
True, Zero is even number but its neither positive nor negative. But I do have a doubt as zero comes under natural numbers, those are non-negative integers. So, I think we can treat this as positive.

Natural numbers starts from 1 not 0

whole numbers starts from 0

Natural numbers are subset of whole number.

Whole numbers := [0,natural numbers]

Thanks gurpreetsingh

I was also thinking the same but wikipedia changed my decision, check out this link. https://en.wikipedia.org/wiki/Natural_number

may be wiki is wrong on this..

I got another link regarding this, https://mathforum.org/library/drmath/view/57186.html



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